Growing community of inventors

Burbank, CA, United States of America

Gregg Duane Butterfield

Average Co-Inventor Count = 3.00

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 6

Gregg Duane ButterfieldJohn J Gowan (2 patents)Gregg Duane ButterfieldRonald Raby (2 patents)Gregg Duane ButterfieldGregg Duane Butterfield (2 patents)John J GowanJohn J Gowan (25 patents)Ronald RabyRonald Raby (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hydro-aire, Inc. (2 from 72 patents)


2 patents:

1. 9701401 - Method of reporting runway condition using brake control system

2. 9412210 - Method of reporting runway condition using brake control system

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as of
12/17/2025
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